<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2016/1/23 0023
 * Time: 0:28
 */
//require 'lib.php';//require依赖

//include 'lib.php';//include包含

require_once 'lib.php';//只是用一次
require_once 'lib.php';
hello();